Nextjs App Router

Community

johnku2011

nextjs-app-router

Use when adding pages, layouts, route handlers, or data fetching in this Next.js App Router project, to follow server-first conventions correctly.

Overview

Publisher	johnku2011
Repository	`boilerplates-with-ai-skills`
Skill name	`nextjs-app-router`
Stars	239
Forks	24
Bundled files	Instructions only
License	MIT
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by johnku2011 on GitHub. Read the source before you install it.

Installation

Install the Nextjs App Router AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/johnku2011/boilerplates-with-ai-skills/tree/main/boilerplates/nextjs-app/skills/nextjs-app-router
Enable the skill in any chat where you want it available.

Store

Installed

Skills

Add skills

Import one or more skills from a public GitHub folder or a local .skill or .zip archive, or SKILL.md file.

From GitHub URLFrom .skill, .zip, or SKILL.md

GitHub repo or folder

https://github.com/johnku2011/boilerplates-with-ai-skills/tree/main/boilerplates/nextjs-app/skills/nextjs-app-router

Points to a single skill folder, or any folder that contains multiple skills. Public repos only.

CancelContinue

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/johnku2011/boilerplates-with-ai-skills.git /tmp/boilerplates-with-ai-skills
mkdir -p .claude/skills
cp -r /tmp/boilerplates-with-ai-skills/boilerplates/nextjs-app/skills/nextjs-app-router .claude/skills/nextjs-app-router

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Nextjs App Router in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Nextjs App Router on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Nextjs App Router is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Next.js App Router

Overview

Build features the App Router way: server components by default, client components only when needed, and colocated routes under app/.

Process

Add a route by creating app/<segment>/page.tsx; add layout.tsx for shared UI and loading.tsx/error.tsx for states.
Keep components as React Server Components unless they need state, effects, or browser APIs. Add "use client" only to those leaf components.
Fetch data in server components with async/await; avoid client-side fetching for initial render when the server can do it.
Put API endpoints in app/api/<name>/route.ts using the Web Request/ Response APIs.
Verify with npm run build (catches server/client boundary and type errors).

Data Fetching

Prefer fetch in Server Components with Next.js caching options (cache, next.revalidate) documented in code comments when non-default.
Use loading.tsx for slow segments; avoid blocking the entire page.
Mutations: Server Actions or Route Handlers — validate input server-side.

Route Handlers

Export named HTTP functions (GET, POST, …) from route.ts.
Return Response.json() with correct status codes.
Never import client-only modules into route.ts.

Guidelines

Never import server-only modules (fs, secrets, DB clients) into client components.
Read secrets from environment variables on the server only; never expose them via NEXT_PUBLIC_* unless they are truly public.
Keep page.tsx thin; move logic into small, typed functions under src/ or colocated lib/.
Prefer next/link and next/image over raw anchors/images.
Colocate tests for pure helpers; run npm run build before claiming done.

Deployment

See the shared deploy-vercel skill when shipping to Vercel.

Anti-patterns

Marking entire pages "use client" to avoid thinking about server boundaries.
Fetching secrets or private APIs from the browser.
Giant page.tsx files mixing UI, data access, and validation.

Frequently asked questions

What does the Nextjs App Router AI skill do?

Use when adding pages, layouts, route handlers, or data fetching in this Next.js App Router project, to follow server-first conventions correctly.

Why use Nextjs App Router on TypingMind?

Because you install it once and use it with any model. Nextjs App Router is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Nextjs App Router in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/johnku2011/boilerplates-with-ai-skills/tree/main/boilerplates/nextjs-app/skills/nextjs-app-router. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Nextjs App Router?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Nextjs App Router?

As many as you like. As long as a model supports skills, you can use Nextjs App Router with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Nextjs App Router AI skill free?

Yes. It is published on GitHub by johnku2011 under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Next.js App Router

Overview

Process

Data Fetching

Route Handlers

Guidelines

Deployment

Anti-patterns

Frequently asked questions

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